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Expired
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SYKES W R INTERLOCKING SIGNAL
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SYKES W R INTERLOCKING SIGNAL
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Application filed by SYKES W R INTERLOCKING SIGNALfiledCriticalSYKES W R INTERLOCKING SIGNAL
Application grantedgrantedCritical
Publication of GB191422328ApublicationCriticalpatent/GB191422328A/en
22,328. Sykes Interlocking Signal Co., W. R., and Sykes, J. C. Nov. 10. Track apparatus for stopping trains.-A weighted track arm b is arranged to close an electric switch when in the upright or danger position. The switch may be in the circuit of an electro-magnet controlling a lock on an electric block signalling-instrument. The switch may comprise two contact springs and a bridging-piece carried by a lever m, which is rocked as the track arm moves into the upright position, by a pin h as this is engaged by the lower part of the arm. Specification 22,004/14 is referred to.
GB191422328D1914-11-101914-11-10Improved Means for Automatically Arresting Railway Trains Provided with Automatic Brakes.
ExpiredGB191422328A
(en)